In Dragon Adventure mode in Sayian Saga, defeat General Tao to get the Masters Pupil skill. Then in the Buu Saga when you first can play as Buu, go to the Mountain Road. You will see Yamcha there and get the Fox Mask. Fuse those Z Items to unlock Grandpa Gohan.

Play as Guldo

Defeat Guldo in Frieza Saga Story mode to unlock him.

Play as Jiece

Defeat Jiece in Frieza Saga Story mode two times to unlock him.

Play as Kaioshin (Supreme Kai)

Reach the Part where everyone goes off to fight Majin Buu in Majin Buu Saga Story mode to unlock Kaioshin (Supreme Kai).

Go to the battle in the Saiyan Saga where you fight Napa. After you defeat him, you will get a Power Ball. Fuse it with any Saiyan to get their Great Ape form.

Hidden "Beautiful Treachery..." scenario in Zarbon

Enter the Frieza Saga and select the "01 A Pursuer Who Calls Death" battle. The battle directions will be "?????", but if you defeat Dordoria a new scenario will appear. In this scenario, there are nine battles. It is long, but the story line is interesting.

With Vegeta (Normal and Super Saiyan form), reach the part where Vegeta comes to help Goku to unlock the Return Of Cooler movie.

History Of Trunks movie

With Adult Gohan (Super Saiyan form), reach the part where Gohan fights Android 17 and 18. With Trunks (Super Saiyan form), defeat Android 17 and 18 with Gohan and watch the scenario after that.

Tournaments

Successfully complete the indicated task to unlock the corresponding tournament:

Cell Games: Win the Three and Four Rounds type tournament at Budokai Tenkaichi (the first tournament).

Mr. Money's Tournament: Win the Three and Four Rounds type tournament at Cell Games.

Five Rounds Tournament: Win the Three and Four Rounds type tournament at Mr. Money's Tournament.

Final Type Tournament: Win the Five Rounds type tournament at every tournament.

Transformations

Sometimes there are different types of transformations for a character. For example, Gohan can turn Super Saiyan into Great Saiyaman. Press the D-pad to transform into another type of form. In other cases pressing different directions can skip transformations. For example, Goku turning into Super Saiyan 2 without turning Super Saiyan first. Note: For one level of transformation you need one Favorite gauge bar.

To get Oozaru Forms, collect Power Orb Fusion Z Items and combine them with the early Saiyan characters.

Completing Story mode

To get 100% in Story mode, get a good set of Z Items to power-up characters. This will make it easier to defeat the high level characters you find in special battles. Find and complete (win by defeat) all of the special battles. This will unlock alternate plots. An example of a special battle is the Piccolo vs. Raditz battle. It is the very first battle in Story mode.

Finding Dragon Balls

Smash through breakable objects in battle maps then run into the Dragon Balls to get them. You must also win the battle.

A more difficult way to get Dragon Balls is to fight somebody in either the Namek or Mountain Road level in Story mode. The Namek level contains a lot of breakables but are difficult to find, especially when you are locked on and your opponent moving and changing your view. The Mountain Road level has almost nothing but trees. If you happen to find Dragon Balls in those levels by accident, pick them up.

Easy Dragon Balls

Fight with any character in Story mode in the Town stage and destroy all the buildings. Eventually you will find a Dragon Ball. Walk to it and you will automatically get it. When you collect all seven Dragon Balls, go to the white dot on the map.

Play the "Fateful Brothers" adventure. During the first scenario, go to the bottom of the map to the Southern Capital. You will see General Tao. Challenge him (easiest for mode 1). When the battle starts, dash/move out to your right so he cannot lock-on. Charge until you have a decent amount of Ki and start firing Ki shots at the buildings and cars. Do not shoot at the trees because they do not usually have Dragon Balls. Keep doing this and if General Tao ever confronts you, do a smash to send him flying. To get out of lock-on mode, face in the opposite direction and press Up. There should be a Dragon Balls on every map; however, after you destroy everything and you are sure there are no Dragon Balls, use your Dragon Radar. You will see a blinking red/orange dot. Go to it and look around. Note: To make this much easier, unlock Great Ape Raditz. You need three blast gauges to use Great Ape Raditz. It is worth it because he breaks through any object by just walking through it. Also, General Tao cannot smash or do anything to disturb you while you are looking for Dragon Balls.

The following is a way of quickly locating the Dragon Balls without spending time smashing buildings or boulders. The entire set of Dragon Balls may be found within the first four episodes of the Saiyan Saga, the very first story in Dragon Adventure mode. Follow the directions below to find the seven Dragon Balls. Note: You may need to re-enter the respective cities (yellow dots on the world map) a few times before the items appear.

In Dragon Adventure mode, play until you get to the Majin Buu Saga. Once you make it to the Two Majin Buus storyline, you will be playing as Fat Buu. During that story, go to the top right area of the map and go to the Mountain Road area. Once there, Yamcha will offer you a contest to see how long you can last. If you either stay alive long enough or if you are strong enough to defeat him, you will be awarded with not only 1,000,000 Zeni, but you will also get Equipment Slots +4 and the Fox Mask fusion capsule. Once done, go back to the scenario selection screen and repeat. Increase Fat Buu's attributes as much as possible to make this easier. It is recommended that you spend some time in the Android Saga scenario and choose the "Goku Defeated!?!" story. Then, go to the bottom of the map to the Southern Capital. When you are fighting, destroy the buildings to look for a Dragon Ball. Keep doing this until you find them all then summon Shenron and hope that he has the Kiss From #18 capsule. That will bring up your attributes very quickly.

If you need to buy capsules for your characters early on in the Saiyan Saga or Frieza Saga, replay the Mysterious Alien Warrior (Saiyan Saga 00) event to unlock the hidden Fateful Brothers Saga. During the events of Fateful Brothers (where you play as Radditz), there are several events where you can endlessly attempt the side battles against groups of Saibamen. Each victory will result in a green Z-Item called the Saibamen set, as well as some Zeni and experience for Radditz. The Saibamen item set can be sold at Baba's shop for 150,000 Zeni. Repeat this as many times as desired to purchase Z-Items for your team. Also, purchasing the four Purple Z-Items at the shop is also recommended. Each set of two can be fused into the items Halo and Majin Seal, which allow good and bad characters to use their Blast 2 techniques at half the energy cost. This is a very helpful item during some of the more difficult Sagas. After unlocking the Majin Buu Saga, the other tip in this section is much more effective.

Three wishes

Collect all seven Dragon Balls while you are in Namek. Visit Porunga and you will be granted three wishes instead of one.

Finding Shenron/Porunga

When you collect all seven Dragon Balls a little white dot will appear. Go there and give the Dragon Balls gathered to get your wish(es).

Easily summon Porunga

Gather all seven Dragon Balls while playing the Saiyan Saga scenario, but do not summon Shenron. Once you unlock the Final Battle scenario, use the Dragon Balls there to summon Porunga. Even though the Balls were collected on Earth, they can be used on Namek. It is easier to gather them in one of the cities on Earth.

If you do a Dragon Smash on some of the more difficult opponents, they will block it and send you staggering backwards. However, if you change the direction, you are more likely to get a clear shot. If you do an attack in the same direction too many times in a row, they will start blocking in the same direction. Try to vary your attacks.

Tapion's special attack

Normally rush moves do not work on giants (Great Apes, Janemba, etc.), however, because Tapion is supposed to fight Hirudigarn (a giant), Tapion's ultimate move (which is a rush attack) works on any and all other giants.